38CrMoAlA钢激光和氮化复合处理研究  

Study on Composite Treatment of 38CrMoAlA Steel by Laser and Nitriding

作　　者：刘富荣[1] 高谦[1] 王广生[1] 高登攀[1] 席守谋[2] 

机构地区：[1]北京航空材料研究院 [2]西北工业大学

出　　处：《航空制造技术》2003年第3期65-67,共3页Aeronautical Manufacturing Technology

摘　　要：采用 2kW横流CO2 激光器研究了38CrMoAlA钢的激光和氮化复合处理对材料硬化层的影响 ;分别比较了先激光后氮化以及先氮化后激光两种不同工艺过程处理的特征 ;测定了激光和氮化复合处理后材料表层的 [N ]浓度分布。结果表明 :38CrMoAlA钢经氮化处理后再经激光处理能够进一步提高材料的硬化层深度。此外 。The effect of the composite treatment of 38CrMoAlA steel by laser and nitriding on its hardening layer characteristics is studied with 2kW CO 2 laser in this article.Two processes of laser quenching nitriding and nitriding laser quenching are compared.Thedistributions in hardened lasers are also analyzed.The results show that the nitriding laser quenching process is better than the laser quenching nitriding process for improving the hardening depth.Besides,the microstructure of 38CrMoAlA steel by nitriding laser quenching composite treatment is observed.

关 键 词：38CRMOALA钢 氮化 激光淬火 复合处理 硬化层 金相组织 表面硬度 

分 类 号：V261[航空宇航科学与技术—航空宇航制造工程]